CN221311940U - Resistance type heating device of hot drawing machine - Google Patents
Resistance type heating device of hot drawing machine Download PDFInfo
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- CN221311940U CN221311940U CN202322630532.0U CN202322630532U CN221311940U CN 221311940 U CN221311940 U CN 221311940U CN 202322630532 U CN202322630532 U CN 202322630532U CN 221311940 U CN221311940 U CN 221311940U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 178
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 29
- 239000010937 tungsten Substances 0.000 claims abstract description 29
- 238000009413 insulation Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000005491 wire drawing Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Abstract
The application relates to the technical field of wire drawing machines, in particular to a resistance type heating device of a hot drawing machine, which comprises a heating cavity, wherein horn-shaped pipelines are arranged at openings at two ends of the heating cavity, the horn-shaped pipelines extend into the heating cavity, a tungsten wire limiting plate is arranged at the bottom of the horn-shaped pipelines, a tungsten wire feeding hole is formed in the tungsten wire limiting plate, and heating resistance wires are densely distributed on the inner wall of the heating cavity; the preheating cavity is sleeved outside the heating cavity, an opening of the preheating cavity faces to the outlet end of the heating cavity, the inner wall of the preheating cavity is connected with the outer wall of the heating cavity through a plurality of support rods, a plurality of guide wheels used for guiding tungsten wires into the heating cavity from the preheating cavity are further arranged inside the preheating cavity, and direct current is communicated on the guide wheels. The application can utilize the heat emitted from the heating device to preheat the tungsten filament, thereby effectively reducing the waste of energy sources.
Description
Technical Field
The application relates to the technical field of wire drawing machines, in particular to a resistance type heating device of a hot drawing machine.
Background
The principle of resistive heating is based on the joule effect, using an electric current flowing through a conductor. The heating device generally comprises a heating cavity, a heating element is arranged in the heating cavity, and when the resistance heating device is used for heating, a material to be heated is placed in the heating cavity, and the material to be heated is heated through the heat generated by the heating element.
The resistance type heating device in the hot drawing machine needs to heat the metal wire during wire drawing so as to soften the metal wire and facilitate wire drawing, and the heat emitted by the hot drawing machine during heating is dissipated into the air, so that the waste of energy sources is caused, and the production cost is increased.
Disclosure of utility model
In order to overcome the problems in the prior art, the application provides a resistance type heating device of a hot drawing machine.
The application provides a resistance type heating device of a hot drawing machine, which adopts the following technical scheme:
A resistance type heating device of a hot drawing machine comprises a heating cavity, wherein horn-shaped pipelines are arranged at openings at two ends of the heating cavity, the horn-shaped pipelines extend into the heating cavity, a tungsten wire limiting plate is arranged at the bottom of the horn-shaped pipelines, a tungsten wire feeding hole is formed in the tungsten wire limiting plate, and heating resistance wires are densely distributed on the inner wall of the heating cavity; the preheating cavity is sleeved outside the heating cavity, an opening of the preheating cavity faces to the outlet end of the heating cavity, the inner wall of the preheating cavity is connected with the outer wall of the heating cavity through a plurality of support rods, a plurality of guide wheels used for guiding tungsten wires into the heating cavity from the preheating cavity are further arranged inside the preheating cavity, and direct current is communicated on the guide wheels.
Through adopting above-mentioned technical scheme, heating device sets up the heating cavity and the suit preheats the cavity on the heating cavity, and the heat that the heating resistance wire produced in the heating cavity also can be passed through the heating cavity and preheat the cavity in the time of heating the tungsten filament of process to preheat the tungsten filament of preheating the cavity, the heat abundant utilization that produces the heating resistance wire has reduced the waste of the energy. Wherein the heating cavity adopts the cavity structure that both ends have loudspeaker form pipeline, and the tungsten filament limiting plate that loudspeaker form pipeline bottom of tip set up is through the tungsten filament feed inlet restriction business turn over that sets up on it heating cavity's tungsten filament diameter, guarantees tungsten filament straight line and passes through the heating cavity, has still reduced the condition that heat was conducted away from the tip simultaneously. Meanwhile, except the mode of adopting the heating resistance wire to carry out indirect resistance heating, the guide wheel arranged on the preheating cavity is communicated with direct current, voltage, current or power is regulated, and the direct resistance heating mode is provided to realize the electrifying heating of the tungsten wire.
Preferably, the inner wall of the heating cavity and one side surface of the horn-shaped pipeline, which is positioned in the heating cavity, are both provided with heating resistance wires.
Through adopting above-mentioned technical scheme, heating resistance wire can heat at the inner wall of the laminating cavity in the heating cavity, and the heat that the heating produced gathers around the heating cavity can be through the clearance between two tubaeform pipelines with the tungsten wire transmission of heat to the process, can concentrate the heat, has better heating effect.
Preferably, the inner walls of the heating cavity and the trumpet-shaped pipeline are both metal heat-conducting plates, and the inner wall of the preheating cavity is provided with a heat shielding plate.
Through adopting above-mentioned technical scheme, the heating cavity adopts the heat transfer that its inside heating resistance wire produced to preheat the cavity in, preheat the heat shield board of cavity inner wall and can block the heat, reduce the heat and give off from preheating the cavity.
Preferably, the feeding end of the heating cavity is provided with an inlet wire guide wheel, and the inlet wire guide wheel is in a circumferential array at the end part of the heating cavity, wherein the inlet wire guide wheel corresponds to the guide wheel.
By adopting the technical scheme, the tungsten wires on the guide wheel can be guided in by the wire inlet guide wheel of the wire inlet end and are annularly distributed at the feeding end, so that the heating of a plurality of groups of tungsten wires can be simultaneously carried out.
Preferably, the inlet wire guide pulley is rotated through the mounting bracket and is connected at the heating cavity tip, and wherein the rotation junction of mounting bracket and heating cavity is equipped with locking mechanism.
Through adopting above-mentioned technical scheme, the inlet wire guide pulley is installed on the mounting bracket, and the mounting bracket can rotate to be connected on the heating cavity, adjusts the position of inlet wire guide pulley and is fixed through locking mechanism according to the diameter of tungsten filament, can the straight line pass through the heating cavity under the heating condition of guaranteeing single tungsten filament or many tungsten filaments.
Preferably, the bottom of the horn-shaped pipeline is provided with a temperature detector, and the temperature detector is parallel to the axis of the heating cavity.
Through adopting above-mentioned technical scheme, the temperature detector of tubaeform pipeline bottom can real-time supervision to the temperature of heating tungsten filament in the heating cavity, and convenient timely adjusts the heating temperature of heating resistance wire.
Preferably, the diameter of the tungsten wire feed inlet is smaller than that of the tungsten wire limiting plate, and arc transition is arranged between the tungsten wire feed inlet and the tungsten wire limiting plate.
By adopting the technical scheme, the diameter of the tungsten wire feed inlet is smaller than that of the tungsten wire limiting plate, arc transition is arranged around the tungsten wire feed inlet, and friction between the tungsten wire and the tungsten wire feed inlet is reduced.
Preferably, the opening of the preheating cavity is connected with the heating cavity through a heat insulation ring, wherein the heat insulation ring is provided with a perforation for the tungsten wire to pass through.
By adopting the technical scheme, the heat insulation ring arranged at the opening of the preheating cavity can reduce heat loss in the preheating cavity and ensure the preheating effect of the tungsten wire.
In summary, the present application includes at least one of the following beneficial technical effects:
the heating device is provided with a heating cavity and a preheating cavity sleeved on the heating cavity, and heat generated by the heating resistance wire in the heating cavity is transmitted to the preheating cavity through the heating cavity when the passing tungsten wire is heated, so that the tungsten wire passing through the preheating cavity is preheated, the heat generated by the heating resistance wire is fully utilized, and the waste of energy sources is reduced;
Heating resistance wire can heat at the inner wall of the laminating cavity in the heating cavity, and the heat that the heating produced gathers can be to the tungsten wire transmission of process with the heat through the clearance between two tubaeform pipelines around the heating cavity, can concentrate the heat, has better heating effect.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a resistance heating device of a thermal puller;
FIG. 2 is a schematic diagram showing the split structure of a heating cavity and a preheating cavity in a resistance heating device of a hot drawing machine;
FIG. 3 is a schematic diagram of an exploded construction of a resistive heating device of a thermal puller;
Fig. 4 is an enlarged view at a in fig. 3.
Reference numerals illustrate: 1. a heating cavity; 11. a trumpet-shaped duct; 12. tungsten wire limiting plates; 121. tungsten filament feed inlet; 13. heating the resistance wire; 14. a wire inlet guide wheel; 141. a mounting frame; 142. a locking mechanism; 15. a temperature measurer;
2. Preheating the cavity; 21. a support rod; 22. a guide wheel; 23. a heat insulating ring; 231. and (5) perforating.
Detailed Description
The application is described in further detail below with reference to fig. 1-4.
The embodiment of the application discloses a resistance type heating device of a hot drawing machine.
Referring to fig. 1, 2, 3 and 4, a resistance type heating device of a hot drawing machine comprises a heating cavity 1, wherein horn-shaped pipelines 11 are arranged at openings at two ends of the heating cavity 1, the horn-shaped pipelines 11 extend into the heating cavity 1, a tungsten wire limiting plate 12 is arranged at the bottom of the horn-shaped pipelines 11, a tungsten wire feeding hole 121 is formed in the tungsten wire limiting plate 12, and heating resistance wires 13 are densely distributed on the inner wall of the heating cavity 1; the preheating cavity 2, the outside at heating cavity 1 is preheated cavity 2 suit, and preheat the exit end of cavity 1 towards the opening of cavity 2, preheat the inner wall of cavity 2 and be connected with heating cavity 1 outer wall through a plurality of bracing pieces 21, preheat the inside guide wheel 22 that still is equipped with a plurality of tungsten filaments and is used for leading in heating cavity 1 from preheating cavity 2 of cavity 2, all communicate direct current on the guide wheel 22. The heating device is provided with the heating cavity 1 and the preheating cavity 2 sleeved on the heating cavity 1, heat generated by the heating resistance wire 13 in the heating cavity 1 is transmitted to the preheating cavity 2 through the heating cavity 1 while heating the passing tungsten wire, so that the tungsten wire passing through the preheating cavity 2 is preheated, the heat generated by the heating resistance wire 13 is fully utilized, and the waste of energy sources is reduced. The heating cavity 1 adopts a cavity structure with the horn-shaped pipelines 11 at two ends, the tungsten wire limiting plate 12 arranged at the bottom of the horn-shaped pipelines 11 at the end part limits the diameter of tungsten wires entering and exiting the heating cavity 1 through the tungsten wire feeding hole 121 arranged on the tungsten wire limiting plate, the tungsten wires are ensured to pass through the heating cavity 1 in a straight line, and meanwhile, the condition that heat is conducted out from the end part is reduced. Meanwhile, except the mode of adopting the heating resistance wire to carry out indirect resistance heating, the guide wheel 22 arranged on the preheating cavity 2 is communicated with direct current, voltage, current or power is regulated, and the tungsten wire is electrified and heated in a direct resistance heating mode.
Referring to fig. 1, 2 and 3, heating resistance wires 13 are mounted on both the inner wall of the heating chamber 1 and a side surface of the horn-shaped duct 11 located in the heating chamber 1. The heating resistance wire 13 can heat the inner wall of the laminating cavity in the heating cavity 1, and the heat that the heating produced gathers around the heating cavity 1 can be through the clearance between two tubaeform pipelines 11 with the heat to the tungsten wire transmission of process, can concentrate the heat, has better heating effect.
Referring to fig. 1, 2 and 3, the inner walls of the heating cavity 1 and the trumpet-shaped pipe 11 are both metal heat-conducting plates, and the inner wall of the preheating cavity 2 is provided with a heat-shielding plate. The heating cavity 1 adopts the metal heat-conducting plate to transfer the heat generated by the internal heating resistance wire 13 into the preheating cavity 2, and the heat shielding plate on the inner wall of the preheating cavity 2 can block the heat, so that the heat is reduced and emitted from the preheating cavity 2.
Referring to fig. 3 and 4, the feeding end of the heating cavity 1 is provided with an inlet guide wheel 14, and the inlet guide wheel 14 is in a circumferential array at the end of the heating cavity 1, wherein the inlet guide wheel 14 corresponds to the guide wheel 22. The inlet wire guide wheel 14 of the inlet wire end can guide the tungsten wires on the guide wheel 22 in, and the tungsten wires are annularly distributed at the inlet wire end, so that heating of a plurality of groups of tungsten wires can be simultaneously carried out.
Referring to fig. 3 and 4, the inlet guide wheel 14 is rotatably connected to the end of the heating cavity 1 through the mounting frame 141, wherein a locking mechanism 142 is disposed at the rotational connection between the mounting frame 141 and the heating cavity 1. The inlet wire guide pulley 14 is installed on the mounting bracket 141, and the mounting bracket 141 can rotate to be connected on heating cavity 1, adjusts the position of inlet wire guide pulley 14 and is fixed through locking mechanism 142 according to the diameter of tungsten filament, can straight line through heating cavity 1 under the condition of guaranteeing the heating of single tungsten filament or many tungsten filaments.
Referring to fig. 1, 2 and 3, the bottom of the horn-shaped duct 11 is provided with a temperature detector 15, the temperature detector 15 being parallel to the axis of the heating chamber 1. The temperature detector 15 at the bottom of the horn-shaped pipeline 11 can monitor the temperature of the heating tungsten wire in the heating cavity 1 in real time, so that the heating temperature of the heating resistance wire 13 can be conveniently and timely adjusted.
Referring to fig. 1, 2 and 3, the diameter of the tungsten wire feed inlet 121 is smaller than that of the tungsten wire limiting plate 12, and an arc transition is arranged between the tungsten wire feed inlet 121 and the tungsten wire limiting plate 12. The diameter of the tungsten wire feeding hole 121 is smaller than that of the tungsten wire limiting plate 12, arc transition is arranged around the tungsten wire feeding hole 121, and friction between the tungsten wire and the tungsten wire feeding hole 121 is reduced.
Referring to fig. 1, 2 and 3, the opening of the preheating chamber 2 is connected with the heating chamber 1 through a heat insulation ring 23, wherein the heat insulation ring 23 is provided with a perforation 231 for passing tungsten filament. The heat insulation ring 23 arranged at the opening of the preheating cavity 2 can reduce the heat loss in the preheating cavity 2 and ensure the preheating effect of tungsten wires.
Working principle: firstly, the heating resistance wire 13 is electrified for heating, then the tungsten wire is led in from the guide wheel 22 at the end part of the preheating cavity 2, direct current is communicated through the guide wheel 22, voltage, current or power is regulated, the electrified heating of the tungsten wire is realized through a direct resistance heating mode, meanwhile, the tungsten wire enters the preheating cavity 2 for preheating through the perforation 231 on the heat insulation ring 23 at the opening part of the preheating cavity 2, and the tungsten wire is led in the inlet wire guide wheel 14 at the end part of the heating cavity 1 through the guide wheel 22 at the other end of the preheating cavity 2. The position of the inlet wire guide wheel 14 is adjusted, the tungsten wire passes through the tungsten wire feed opening 121 in a straight line, the installation frame 141 for installing the inlet wire guide wheel 14 is fixed through the locking mechanism 142, the tungsten wire passes through the tungsten wire feed opening 121 at the bottom of the drawing-shaped pipeline, and the tungsten wire is guided out from the discharge end after being heated by the heating cavity 1.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. A resistance heating device of a hot drawing machine, which is characterized in that: comprising
The heating device comprises a heating cavity (1), wherein horn-shaped pipelines (11) are arranged at openings at two ends of the heating cavity (1), the horn-shaped pipelines (11) extend into the heating cavity (1), a tungsten wire limiting plate (12) is arranged at the bottom of the horn-shaped pipelines (11), a tungsten wire feeding hole (121) is formed in the tungsten wire limiting plate (12), and heating resistance wires (13) are densely distributed on the inner wall of the heating cavity (1);
Preheat cavity (2), preheat the outside of cavity (2) suit at heating cavity (1), and preheat the exit end of the opening orientation heating cavity (1) of cavity (2), preheat the inner wall of cavity (2) and be connected with heating cavity (1) outer wall through a plurality of bracing pieces (21), preheat the inside leading-in leading-out wheel (22) of heating cavity (1) of cavity (2) with tungsten filament that are equipped with of cavity (2), all communicate direct current on leading-in wheel (22).
2. A resistance heating apparatus of a thermal puller as set forth in claim 1 wherein: heating resistance wires (13) are arranged on the inner wall of the heating cavity (1) and on one side surface of the horn-shaped pipeline (11) which is positioned on the heating cavity (1).
3. A resistance heating apparatus of a thermal puller as set forth in claim 1 wherein: the inner walls of the heating cavity (1) and the horn-shaped pipeline (11) are both metal heat-conducting plates, and the inner wall of the preheating cavity (2) is provided with a heat shielding plate.
4. A resistance heating apparatus of a thermal puller as set forth in claim 1 wherein: the feeding end of the heating cavity (1) is provided with an inlet wire guide wheel (14), and the inlet wire guide wheel (14) is in a circumferential array at the end part of the heating cavity (1), wherein the inlet wire guide wheel (14) corresponds to the guide wheel (22).
5. The resistive heating apparatus of a thermal puller as set forth in claim 4 wherein: the inlet wire guide pulley (14) is connected at the end of heating cavity (1) through mounting bracket (141) rotation, and wherein mounting bracket (141) are equipped with locking mechanism (142) with the rotation junction of heating cavity (1).
6. A resistance heating apparatus of a thermal puller as set forth in claim 1 wherein: the bottom of the horn-shaped pipeline (11) is provided with a temperature detector (15), and the temperature detector (15) is parallel to the axis of the heating cavity (1).
7. A resistance heating apparatus of a thermal puller as set forth in claim 1 wherein: the diameter of the tungsten wire feeding hole (121) is smaller than that of the tungsten wire limiting plate (12), and arc transition is arranged between the tungsten wire feeding hole (121) and the tungsten wire limiting plate (12).
8. A resistance heating apparatus of a thermal puller as set forth in claim 1 wherein: the opening of the preheating cavity (2) is connected with the heating cavity (1) through a heat insulation ring (23), wherein the heat insulation ring (23) is provided with a perforation (231) for tungsten wires to pass through.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221311940U true CN221311940U (en) | 2024-07-12 |
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